Hexagonal installation key for a flow meter



FIG. 1 is a top and one side perspective view of the hexagonalinstallation key for a flow meter showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view thereof;

FIG. 6 is an end elevational view thereof as viewed from either the leftor right of FIG. 3;

FIG. 7 is a top and opposite side perspective view thereof;

FIG. 8 is a bottom perspective view thereof taken from the same side asFIG. 7.

The ornamental design for hexagonal installation key for a flow meter,substantially as shown and described.